 /*******************************************************************************
  * Copyright (c) 2000, 2007 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.update.internal.core.connection;

 import java.io.IOException ;
 import java.io.InputStream ;

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;

 public interface IResponse {

     /**
      * Method getInputStream.
      *
      * @return InputStream
      */
     public InputStream getInputStream() throws IOException ;

     /**
      * A special version of 'getInputStream' that can be canceled.
      * A monitor thread checks the state of the monitor
      * and disconnects the connection if 'isCanceled()' is detected.
      *
      * @param monitor
      * the progress monitor
      * @return InputStream an opened stream or null if failed.
      * @throws IOException
      * if there are problems
      * @throws CoreException
      * if no more connection threads are available
      */
     public InputStream getInputStream(IProgressMonitor monitor)
         throws IOException , CoreException, TooManyOpenConnectionsException;

     /**
      * Method getContentLength.
      *
      * @return long
      */
     public long getContentLength();

     /**
      * Method getStatusCode.
      *
      * @return int
      */
     public int getStatusCode();

     /**
      * Method getStatusMessage.
      *
      * @return String
      */
     public String getStatusMessage();

     /**
      * Returns the timestamp of last modification to the resource
      *
      * @return
      */
     public long getLastModified();
     
     /**
      * Close the connection if open.
      */
     public void close();
 }

